diff options
Diffstat (limited to 'arch/arm/mach-sa1100/h3600.c')
| -rw-r--r-- | arch/arm/mach-sa1100/h3600.c | 454 |
1 files changed, 79 insertions, 375 deletions
diff --git a/arch/arm/mach-sa1100/h3600.c b/arch/arm/mach-sa1100/h3600.c index 0eb2f159578b..af3b71459f8d 100644 --- a/arch/arm/mach-sa1100/h3600.c +++ b/arch/arm/mach-sa1100/h3600.c @@ -1,421 +1,127 @@ /* - * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers + * Support for Compaq iPAQ H3600 handheld computer * - * Copyright 2000,1 Compaq Computer Corporation. + * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks) + * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru> * - * Use consistent with the GNU GPL is permitted, - * provided that this copyright notice is - * preserved in its entirety in all copies and derived works. - * - * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, - * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS - * FITNESS FOR ANY PARTICULAR PURPOSE. - * - * Author: Jamey Hicks. - * - * History: - * - * 2001-10-?? Andrew Christian Added support for iPAQ H3800 - * and abstracted EGPIO interface. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. * */ -#include <linux/module.h> + #include <linux/init.h> #include <linux/kernel.h> -#include <linux/tty.h> -#include <linux/pm.h> -#include <linux/device.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/serial_core.h> +#include <linux/gpio.h> -#include <asm/irq.h> -#include <mach/hardware.h> #include <asm/mach-types.h> -#include <asm/setup.h> - -#include <asm/mach/irq.h> #include <asm/mach/arch.h> -#include <asm/mach/flash.h> #include <asm/mach/irda.h> -#include <asm/mach/map.h> -#include <asm/mach/serial_sa1100.h> -#include <mach/h3600.h> -#include <mach/h3600_gpio.h> +#include <mach/h3xxx.h> #include "generic.h" -void (*assign_h3600_egpio)(enum ipaq_egpio_type x, int level); -EXPORT_SYMBOL(assign_h3600_egpio); - -static struct mtd_partition h3xxx_partitions[] = { - { - .name = "H3XXX boot firmware", - .size = 0x00040000, - .offset = 0, - .mask_flags = MTD_WRITEABLE, /* force read-only */ - }, { - .name = "H3XXX rootfs", - .size = MTDPART_SIZ_FULL, - .offset = 0x00040000, - } -}; - -static void h3xxx_set_vpp(int vpp) -{ - assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, vpp); -} - -static struct flash_platform_data h3xxx_flash_data = { - .map_name = "cfi_probe", - .set_vpp = h3xxx_set_vpp, - .parts = h3xxx_partitions, - .nr_parts = ARRAY_SIZE(h3xxx_partitions), -}; - -static struct resource h3xxx_flash_resource = { - .start = SA1100_CS0_PHYS, - .end = SA1100_CS0_PHYS + SZ_32M - 1, - .flags = IORESOURCE_MEM, -}; - /* - * This turns the IRDA power on or off on the Compaq H3600 - */ -static int h3600_irda_set_power(struct device *dev, unsigned int state) -{ - assign_h3600_egpio( IPAQ_EGPIO_IR_ON, state ); - - return 0; -} - -static void h3600_irda_set_speed(struct device *dev, unsigned int speed) -{ - assign_h3600_egpio(IPAQ_EGPIO_IR_FSEL, !(speed < 4000000)); -} - -static struct irda_platform_data h3600_irda_data = { - .set_power = h3600_irda_set_power, - .set_speed = h3600_irda_set_speed, -}; - -static void h3xxx_mach_init(void) -{ - sa11x0_set_flash_data(&h3xxx_flash_data, &h3xxx_flash_resource, 1); - sa11x0_set_irda_data(&h3600_irda_data); -} - -/* - * low-level UART features + * helper for sa1100fb */ - -static void h3600_uart_set_mctrl(struct uart_port *port, u_int mctrl) +static void h3600_lcd_power(int enable) { - if (port->mapbase == _Ser3UTCR0) { - if (mctrl & TIOCM_RTS) - GPCR = GPIO_H3600_COM_RTS; - else - GPSR = GPIO_H3600_COM_RTS; + if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power")) { + pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__); + goto err1; } -} - -static u_int h3600_uart_get_mctrl(struct uart_port *port) -{ - u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; - - if (port->mapbase == _Ser3UTCR0) { - int gplr = GPLR; - /* DCD and CTS bits are inverted in GPLR by RS232 transceiver */ - if (gplr & GPIO_H3600_COM_DCD) - ret &= ~TIOCM_CD; - if (gplr & GPIO_H3600_COM_CTS) - ret &= ~TIOCM_CTS; + if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control")) { + pr_err("%s: can't request H3XXX_EGPIO_LCD_PCI\n", __func__); + goto err2; + } + if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v")) { + pr_err("%s: can't request H3XXX_EGPIO_LCD_5V_ON\n", __func__); + goto err3; + } + if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v")) { + pr_err("%s: can't request H3600_EGPIO_LVDD_ON\n", __func__); + goto err4; } - return ret; -} + gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable); + gpio_direction_output(H3600_EGPIO_LCD_PCI, enable); + gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable); + gpio_direction_output(H3600_EGPIO_LVDD_ON, enable); -static void h3600_uart_pm(struct uart_port *port, u_int state, u_int oldstate) -{ - if (port->mapbase == _Ser2UTCR0) { /* TODO: REMOVE THIS */ - assign_h3600_egpio(IPAQ_EGPIO_IR_ON, !state); - } else if (port->mapbase == _Ser3UTCR0) { - assign_h3600_egpio(IPAQ_EGPIO_RS232_ON, !state); - } + gpio_free(H3600_EGPIO_LVDD_ON); +err4: gpio_free(H3600_EGPIO_LCD_5V_ON); +err3: gpio_free(H3600_EGPIO_LCD_PCI); +err2: gpio_free(H3XXX_EGPIO_LCD_ON); +err1: return; } -/* - * Enable/Disable wake up events for this serial port. - * Obviously, we only support this on the normal COM port. - */ -static int h3600_uart_set_wake(struct uart_port *port, u_int enable) +static void __init h3600_map_io(void) { - int err = -EINVAL; + h3xxx_map_io(); - if (port->mapbase == _Ser3UTCR0) { - if (enable) - PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */ - else - PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */ - err = 0; - } - return err; + sa1100fb_lcd_power = h3600_lcd_power; } -static struct sa1100_port_fns h3600_port_fns __initdata = { - .set_mctrl = h3600_uart_set_mctrl, - .get_mctrl = h3600_uart_get_mctrl, - .pm = h3600_uart_pm, - .set_wake = h3600_uart_set_wake, -}; - /* - * helper for sa1100fb + * This turns the IRDA power on or off on the Compaq H3600 */ -static void h3xxx_lcd_power(int enable) +static int h3600_irda_set_power(struct device *dev, unsigned int state) { - assign_h3600_egpio(IPAQ_EGPIO_LCD_POWER, enable); + gpio_set_value(H3600_EGPIO_IR_ON, state); + return 0; } -static struct map_desc h3600_io_desc[] __initdata = { - { /* static memory bank 2 CS#2 */ - .virtual = H3600_BANK_2_VIRT, - .pfn = __phys_to_pfn(SA1100_CS2_PHYS), - .length = 0x02800000, - .type = MT_DEVICE - }, { /* static memory bank 4 CS#4 */ - .virtual = H3600_BANK_4_VIRT, - .pfn = __phys_to_pfn(SA1100_CS4_PHYS), - .length = 0x00800000, - .type = MT_DEVICE - }, { /* EGPIO 0 CS#5 */ - .virtual = H3600_EGPIO_VIRT, - .pfn = __phys_to_pfn(H3600_EGPIO_PHYS), - .length = 0x01000000, - .type = MT_DEVICE - } -}; - -/* - * Common map_io initialization - */ - -static void __init h3xxx_map_io(void) +static void h3600_irda_set_speed(struct device *dev, unsigned int speed) { - sa1100_map_io(); - iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc)); - - sa1100_register_uart_fns(&h3600_port_fns); - sa1100_register_uart(0, 3); /* Common serial port */ -// sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */ - - /* Ensure those pins are outputs and driving low */ - PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM; - PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); - - /* Configure suspend conditions */ - PGSR = 0; - PWER = PWER_GPIO0 | PWER_RTC; - PCFR = PCFR_OPDE; - PSDR = 0; - - sa1100fb_lcd_power = h3xxx_lcd_power; + gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000)); } -/************************* H3100 *************************/ - -#ifdef CONFIG_SA1100_H3100 - -#define H3100_EGPIO (*(volatile unsigned int *)H3600_EGPIO_VIRT) -static unsigned int h3100_egpio = 0; - -static void h3100_control_egpio(enum ipaq_egpio_type x, int setp) +static int h3600_irda_startup(struct device *dev) { - unsigned int egpio = 0; - long gpio = 0; - unsigned long flags; - - switch (x) { - case IPAQ_EGPIO_LCD_POWER: - egpio |= EGPIO_H3600_LCD_ON; - gpio |= GPIO_H3100_LCD_3V_ON; - break; - case IPAQ_EGPIO_LCD_ENABLE: - break; - case IPAQ_EGPIO_CODEC_NRESET: - egpio |= EGPIO_H3600_CODEC_NRESET; - break; - case IPAQ_EGPIO_AUDIO_ON: - gpio |= GPIO_H3100_AUD_PWR_ON - | GPIO_H3100_AUD_ON; - break; - case IPAQ_EGPIO_QMUTE: - gpio |= GPIO_H3100_QMUTE; - break; - case IPAQ_EGPIO_OPT_NVRAM_ON: - egpio |= EGPIO_H3600_OPT_NVRAM_ON; - break; - case IPAQ_EGPIO_OPT_ON: - egpio |= EGPIO_H3600_OPT_ON; - break; - case IPAQ_EGPIO_CARD_RESET: - egpio |= EGPIO_H3600_CARD_RESET; - break; - case IPAQ_EGPIO_OPT_RESET: - egpio |= EGPIO_H3600_OPT_RESET; - break; - case IPAQ_EGPIO_IR_ON: - gpio |= GPIO_H3100_IR_ON; - break; - case IPAQ_EGPIO_IR_FSEL: - gpio |= GPIO_H3100_IR_FSEL; - break; - case IPAQ_EGPIO_RS232_ON: - egpio |= EGPIO_H3600_RS232_ON; - break; - case IPAQ_EGPIO_VPP_ON: - egpio |= EGPIO_H3600_VPP_ON; - break; - } + int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power"); + if (err) + goto err1; + err = gpio_direction_output(H3600_EGPIO_IR_ON, 0); + if (err) + goto err2; + err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel"); + if (err) + goto err2; + err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0); + if (err) + goto err3; + return 0; - if (egpio || gpio) { - local_irq_save(flags); - if (setp) { - h3100_egpio |= egpio; - GPSR = gpio; - } else { - h3100_egpio &= ~egpio; - GPCR = gpio; - } - H3100_EGPIO = h3100_egpio; - local_irq_restore(flags); - } +err3: gpio_free(H3600_EGPIO_IR_FSEL); +err2: gpio_free(H3600_EGPIO_IR_ON); +err1: return err; } -#define H3100_DIRECT_EGPIO (GPIO_H3100_BT_ON \ - | GPIO_H3100_GPIO3 \ - | GPIO_H3100_QMUTE \ - | GPIO_H3100_LCD_3V_ON \ - | GPIO_H3100_AUD_ON \ - | GPIO_H3100_AUD_PWR_ON \ - | GPIO_H3100_IR_ON \ - | GPIO_H3100_IR_FSEL) - -static void __init h3100_map_io(void) +static void h3600_irda_shutdown(struct device *dev) { - h3xxx_map_io(); - - /* Initialize h3100-specific values here */ - GPCR = 0x0fffffff; /* All outputs are set low by default */ - GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK | - GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA | - GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 | - H3100_DIRECT_EGPIO; - - /* Older bootldrs put GPIO2-9 in alternate mode on the - assumption that they are used for video */ - GAFR &= ~H3100_DIRECT_EGPIO; - - H3100_EGPIO = h3100_egpio; - assign_h3600_egpio = h3100_control_egpio; + gpio_free(H3600_EGPIO_IR_ON); + gpio_free(H3600_EGPIO_IR_FSEL); } -MACHINE_START(H3100, "Compaq iPAQ H3100") - .phys_io = 0x80000000, - .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, - .boot_params = 0xc0000100, - .map_io = h3100_map_io, - .init_irq = sa1100_init_irq, - .timer = &sa1100_timer, - .init_machine = h3xxx_mach_init, -MACHINE_END - -#endif /* CONFIG_SA1100_H3100 */ - -/************************* H3600 *************************/ - -#ifdef CONFIG_SA1100_H3600 - -#define H3600_EGPIO (*(volatile unsigned int *)H3600_EGPIO_VIRT) -static unsigned int h3600_egpio = EGPIO_H3600_RS232_ON; - -static void h3600_control_egpio(enum ipaq_egpio_type x, int setp) -{ - unsigned int egpio = 0; - unsigned long flags; - - switch (x) { - case IPAQ_EGPIO_LCD_POWER: - egpio |= EGPIO_H3600_LCD_ON | - EGPIO_H3600_LCD_PCI | - EGPIO_H3600_LCD_5V_ON | - EGPIO_H3600_LVDD_ON; - break; - case IPAQ_EGPIO_LCD_ENABLE: - break; - case IPAQ_EGPIO_CODEC_NRESET: - egpio |= EGPIO_H3600_CODEC_NRESET; - break; - case IPAQ_EGPIO_AUDIO_ON: - egpio |= EGPIO_H3600_AUD_AMP_ON | - EGPIO_H3600_AUD_PWR_ON; - break; - case IPAQ_EGPIO_QMUTE: - egpio |= EGPIO_H3600_QMUTE; - break; - case IPAQ_EGPIO_OPT_NVRAM_ON: - egpio |= EGPIO_H3600_OPT_NVRAM_ON; - break; - case IPAQ_EGPIO_OPT_ON: - egpio |= EGPIO_H3600_OPT_ON; - break; - case IPAQ_EGPIO_CARD_RESET: - egpio |= EGPIO_H3600_CARD_RESET; - break; - case IPAQ_EGPIO_OPT_RESET: - egpio |= EGPIO_H3600_OPT_RESET; - break; - case IPAQ_EGPIO_IR_ON: - egpio |= EGPIO_H3600_IR_ON; - break; - case IPAQ_EGPIO_IR_FSEL: - egpio |= EGPIO_H3600_IR_FSEL; - break; - case IPAQ_EGPIO_RS232_ON: - egpio |= EGPIO_H3600_RS232_ON; - break; - case IPAQ_EGPIO_VPP_ON: - egpio |= EGPIO_H3600_VPP_ON; - break; - } +static struct irda_platform_data h3600_irda_data = { + .set_power = h3600_irda_set_power, + .set_speed = h3600_irda_set_speed, + .startup = h3600_irda_startup, + .shutdown = h3600_irda_shutdown, +}; - if (egpio) { - local_irq_save(flags); - if (setp) - h3600_egpio |= egpio; - else - h3600_egpio &= ~egpio; - H3600_EGPIO = h3600_egpio; - local_irq_restore(flags); - } -} +static struct gpio_default_state h3600_default_gpio[] = { + { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" }, + { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" }, + { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" }, +}; -static void __init h3600_map_io(void) +static void __init h3600_mach_init(void) { - h3xxx_map_io(); - - /* Initialize h3600-specific values here */ - - GPCR = 0x0fffffff; /* All outputs are set low by default */ - GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK | - GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA | - GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 | - GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 | - GPIO_LDD11 | GPIO_LDD10 | GPIO_LDD9 | GPIO_LDD8; - - H3600_EGPIO = h3600_egpio; /* Maintains across sleep? */ - assign_h3600_egpio = h3600_control_egpio; + h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio)); + h3xxx_mach_init(); + sa11x0_register_irda(&h3600_irda_data); } MACHINE_START(H3600, "Compaq iPAQ H3600") @@ -425,8 +131,6 @@ MACHINE_START(H3600, "Compaq iPAQ H3600") .map_io = h3600_map_io, .init_irq = sa1100_init_irq, .timer = &sa1100_timer, - .init_machine = h3xxx_mach_init, + .init_machine = h3600_mach_init, MACHINE_END -#endif /* CONFIG_SA1100_H3600 */ - |